Well-digging machine.



J. H. GIAGK.

WELL DIGGING MACHINE.

Pgmonlon unan APB. 1, 190e.4

Patented Dea-1, 1908. 4

rus Nanni: PETERS co.. wAsHlNGiraN. D.

the claims.

.UNITED sTATEsrL-ITENT Ormea.

JUDGE H. OLAck, or MEMPHIS, TEXAS, AssIeNon OF ONE-HALF To ogL. woons, or MEMPHI s,

l WELLDIGGINGMAOHINE. n Y

To all whom it may concern: l i

l'e it known that I, Y.Innen .CLAciQa citizen of the United States ofAmerica, re-

sidingk at Memphis, lin the county ofI-Iall and State of Texas, have-inventedcertain' novel features `hereinafter rst fully `de-` scribed and then particularly pointed out in In the accompanying drawings, which fully illustrate the invention, Figure 1 is a; plan view, partly in section, Ofan oil-well' drilling machine embodying theimprovements; Fig. 2 is a longitudinal section of the same; Fig. 3 is a detail section through Vthe cross-head and spudding beam, and Fig. 4 is a detail view of the cross-head,

The machine comprises a suitable Vframe provided with a'mast, 1, at one end andhaving a space, 2, at the opposite end for the operating engine. Adjacent the mast, the frame is provided with upper supporting beams, 3, upon which is journaled the driving shaft, 4, having at one end a band pulley, 5, which is connected with the operating engine by a suitable belt. The driving'shaft is formed in two alined members having concentric crank disks, 6, on the1r lnner ends between which the spudding beam, 7 plays.

Y These crank disks are connectedfby a wrist pin, 8, which passesrthrough a cross-head, 9, the cross-head being mounted 1n a longi tudinal slot, 10, in the freeend of the Spud# ding beam. Grooves or ways, 11, are formed in the upper and lower walls of the slot 10 and the cross-head is provided Von its upper and lower sides with ribs, 12, adapted to engage said grooves or ways andthereby l prevent lateral` displacement ofthe crosshead. The ribs and grooves are preferably provided with metallic wearing surfaces in order to prolongthe life of the parts but the body of the beam as well as of the cross-head is preferably formedof a cheaper material, such as wood, for the sake ofeconomy. The cross-head is constructed in two members,

13, having registering recesses, 14, in their opposing faces to engage theV wrist pin and are held together by bolts, 15, vinserted longig "Specification of Letters Patent,

Patented nec. 1, 1908.

" Y Application meaapru 1,190@ seiainmaaaco.

i tudinally` through ,the members. This construction permits the parts to be tightened at will in order `to1 :ompensate for the wear froinf the wrist pin. "The spudding beam is fulcrumed near its inner end upon the upper portion of the supporting frame and carries 4a pulley, 16,` at its inner end. Upon the upper side of the spudding beam l at the free end of the same, is aV bracket, 127, in which is journaled a pulley, 18, while a similar pulley, 19, is provided at the upper end of the mast 1. The rope drum is situated on the frame below the spudding beam and the driving shaft and theV drill rope, 21, passes from the drum to and over the pulley 16, thence to and under the pulley 18 and thence to and over the pulley, 19 from which it depends, carrying Ithe usual drill at its lower end. Y

When motion is imparted to the driving shaft from the engine, the wrist pin will be spudding beam will consequentlybe vibrated. As the free end ofthe beam is carried downward by the wristpin, the drill rope will be drawn upward in the well so as to raise the drill while when'the beam moves in the opposite direction the rope will be slackened and the weight of the drill will cause it to fall and perform its work of deepening the well. Asthewell is deepened the drum is rotated slightly so as to increase the working length `of the drill rope in the usual manner.

VIt will `be readily observed that I have produced avery simple and compactly arranged machine. The crank disks will lie .close to the opposite sides of the beam and lthereby serve to resist the tendency of the beam to move laterally so that the liability of twisting the driving shaft and the several journalsis overcome. Thel construction of the cross-head and the slotted portion of the spudding beam is such that these parts are 'laterally interlocked so that the cross-head carried around by the crank disks and the disks on the inner ends of the members of the driving shaft close to the sides of the spudding beam, a cross-head mounted in the longitudinal slot of the spudding beam, and a wrist pin connecting th'e crank disks and passing through the cross-head.

2. -In a well-drilling machine, the combination of a supporting frame, a spudding beam fulcrumed thereon and constructed with a longitudinal slot at its free end and longitudinal grooves in the upper and lower Walls of the said slot, a two-part driving shaft mounted on the frame, disks on the inner ends of the members of the said shaft at the opposite sides of the spudding beam,

a wrist pin connecting the disks and passing through the longitudinal slot in the spudding beam, and a cross-head consisting of two members clamped on the wrist piu und provided with ribs on its upper und lower sides to engage the grooves in the upper und lower walls of the slot in the beam.

In testimony whereof, I have signed this specification in the presence of two subscribing witnesses.

JUDGE H. CLACK.

C. L. Woons. 

